Question

According to emile durkheim, while traditional, rural societies were built on________, modern urban societies are held together by _______

Answer 1

I believe the answer is: likeness; difference

According to durkheim, urban societes are places where people from various backgrounds and ethnicity could come to compete/interract with one another.
In such places, the difference that brought by various people would merge and assimilate with one another and held the foundation of their society.